Sakai SV540 Series, Shop Manual

Page: 237 / 306

9-029
TROUBLESHOOTING
2-4-1. Engine will not start (Starter motor does not run) 3/4
F-R lever must be in “N”.
Parking brake switch must be applied.
Foot brake switch must be ON (Brake pedal is not depressed).
Reference Fig.: 2-4-1
Check point Check/Cause Action
10. Parking Brake Switch (1) when starter switch is ON, measure voltage between
parking brake switch terminal 1 inlet wire LgR and
chassis ground.
Standard voltage : 24 V or more
(2) when starter switch is ON, measure voltage between
parking brake switch terminal 2 outlet wire LgW and
chassis ground.
Standard voltage : 24 V or more
If above item (1) is OK and item (2) is NG, parking brake
switch is faulty.
•
Replace parking brake
switch.
11. Interlock Relay (A-1) (1) when starter switch is ON, measure voltage between
interlock relay (A-1) terminal 1 inlet wire w and chassis
ground.
Standard voltage : 24 V or more
(2) when starter switch is START, measure voltage
between interlock relay (A-1) terminal 3 inlet wire Lg
and chassis ground.
Standard voltage : 24 V or more
(3) when starter switch is START, measure voltage
between interlock relay (A-1) terminal 5 outlet wire BY
and chassis ground.
Standard voltage : 24 V or more
If above items (1) and (2) are OK and item (3) is NG,
interlock relay (A-1) is faulty.
•
Replace interlock relay
(A-1).
12. Parking Interlock
Relay (A-2)
(1) when starter switch is ON, measure voltage between
parking interlock relay (A-2) terminal 1 inlet wire Lgw
and chassis ground.
Standard voltage : 24 V or more
(2) when starter switch is START, measure voltage
between parking interlock relay (A-2) terminal 3 inlet
wire BY and chassis ground.
Standard voltage : 24 V or more
(3) when starter switch is START, measure voltage
between parking interlock relay (A-2) terminal 5 outlet
wire BW and chassis ground.
Standard voltage : 24 V or more
If above items (1) and (2) are OK and item (3) is NG,
parking interlock relay (A-2) is faulty.
•
Replace parking interlock
relay (A-2).
•
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